The burrowing bed is a circular base cushion with a tube of fleece attached to it. This bed design allows for a lovely mess of fleece to fall over the pet when it sleeps in it. It is not as firm as the donut bed in terms of the rim, but there is ample fleece to cover the pet completely while in it. This bed is best used for the pet to sleep in while in a kennel, on a couch or in bed.